CN203602242U - Movable supporting leg control system and tire crane - Google Patents

Abstract

The utility model provides a movable outrigger control system, comprising an oil pump 3, a multi-way valve 4 located at the oil supply port P of the oil pump 3, a horizontal oil cylinder 5 and a vertical oil cylinder connected to the working oil port of the multi-way valve 4 7. The two-way hydraulic control check valve 10 located between the working oil port of the rod chamber and the rodless chamber of the vertical oil cylinder 7, the oil tank 9 connected to the oil return port T of the multi-way valve 4, the multi-way Valve 4 is an electronically controlled manual dual-mode five-gang multi-way valve, each of which includes a manual handle and an electromagnet, and also includes five electric control buttons electrically connected to the five electromagnets, and a The above five electric control buttons control the operation mode selection button on the top. The utility model also provides a tire crane including the movable outrigger control system. The movable outrigger control system provided by the utility model enables the operator to select the operation mode according to the operation conditions, and improves the operation efficiency and operation safety performance.

Description

Active outrigger control system and tire crane

technical field

The utility model relates to the field of construction machinery, in particular to a control system for movable outriggers and a tire crane containing the control system for movable outriggers.

Background technique

When working with cranes such as tire cranes, it is often necessary to move the equipment frequently. Before moving the equipment, the outriggers must be retracted. After moving to the designated position, the outriggers must be opened before the operation. Nowadays, there are two ways to control the outriggers, one is the electronic control operation directly in the cab, and the other is manual operation after getting off the vehicle.

1) When operating the outrigger in manual mode, the operator can fully operate the outrigger action according to the actual working conditions, but the operator needs to get on and off the vehicle frequently, which affects the working efficiency and increases the labor intensity of the operator;

2) When the outriggers are operated in electric mode, the operator does not need to get on and off the vehicle, and the work efficiency is high. However, in some workplaces where the field of vision is limited, it is inconvenient to judge whether the outriggers are in place and whether the outriggers will touch people or objects, there is a safety hazard.

Therefore, it is the technical problem to be solved by the utility model to provide a movable outrigger control system that allows the operator to select the operation mode according to the operation conditions, so as to improve the operation efficiency and operation safety performance.

Utility model content

The technical problem to be solved by the utility model is to provide a movable outrigger control system, so that the operator can select the operation mode according to the operation conditions, and improve the operation efficiency and operation safety performance. The utility model also provides a tire crane.

In view of this, the utility model provides a movable outrigger control system, including an oil pump 3, a multi-way valve 4 located at the oil supply port P of the oil pump 3, and a horizontal oil cylinder connected to the working oil port of the multi-way valve 4 5 and the vertical oil cylinder 7, the bidirectional hydraulic control check valve 10 located between the working oil port of the rod chamber and the rodless chamber of the vertical oil cylinder 7, the oil tank 9 connected to the oil return port T of the multi-way valve 4, The multi-way valve 4 is an electronically controlled manual dual-mode five-way multi-way valve, each of which includes a manual handle and an electromagnet, and also includes five electric control buttons electrically connected to the five electromagnets , and the operation mode selection button located at the upper end of the five electric control buttons.

Preferably, it also includes a pressure sensor 2 and a solenoid valve 1. The pressure sensor 2 is located at the oil outlet of the oil pump 3. The solenoid valve 1 is located between the pressure sensor 2 and the oil tank 9. The sensor 2 is electrically connected to the central controller of the solenoid valve 1 .

Preferably, an alarm electrically connected to the central controller is also included.

Preferably, a vertical proximity switch 8 located at the piston rod extension end of the vertical oil cylinder 7 is also included.

Preferably, it also includes a horizontal proximity switch 6 located at the extended end of the piston rod of the horizontal oil cylinder 5 .

Preferably, the solenoid valve 1 is a two-position two-way solenoid valve.

Preferably, the second electric control valve 42 , the third electric control valve 43 , the fourth electric control valve 44 and the fifth electric control valve 45 are three-position four-way electric control valves.

Preferably, the first joint electric control valve 41 is a three-position six-way electric control valve.

The utility model also provides a tire crane, which includes a driver's cab, a frame body and movable outriggers, and also includes the movable outrigger control system described in any of the above technical solutions, the operation mode selection button and the five The electric control buttons are located on the operation panel of the cab.

Preferably, a level gauge located on the multi-way valve 4 is also included.

To sum up, the movable outrigger control system provided by the utility model enables the operator to select the operation mode according to the operation conditions, and improves the operation efficiency and operation safety performance. The utility model also provides a tire crane.

Description of drawings

Fig. 1 is the hydraulic principle diagram of an embodiment of the movable outrigger control system described in the utility model;

Fig. 2 is the working flowchart of the movable outrigger control system embodiment that Fig. 1 provides;

Fig. 3 is a working flow chart of another embodiment of the movable outrigger control system provided by the present invention.

Wherein, the corresponding relationship between reference numerals and component names in Fig. 1 is:

1 solenoid valve, 2 pressure sensor, 3 oil pump, 4 multi-way valve, 41 first electric control valve, 42 second electric control valve, 43 third electric control valve, 44 fourth electric control valve, 45 Five-connected electric control valve, 411 first working position, 412 second working position, 5 horizontal oil cylinders, 6 horizontal proximity switches, 7 vertical oil cylinders, 8 vertical proximity switches, 9 fuel tanks, 10 two-way hydraulic control check valves.

Detailed ways

In order to more clearly understand the above purpose, features and advantages of the utility model, the utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

In the following description, a lot of specific details have been set forth in order to fully understand the utility model, but the utility model can also be implemented in other ways different from those described here, therefore, the protection scope of the utility model is not limited by the following limitations of the specific embodiments disclosed.

Figures 1 to 2 show an embodiment of the movable outrigger control system provided by the present invention.

The utility model provides a movable outrigger control system, comprising an oil pump 3, a multi-way valve 4 located at the oil supply port P of the oil pump 3, a horizontal oil cylinder 5 and a vertical oil cylinder connected to the working oil port of the multi-way valve 4 7. The two-way hydraulic control check valve 10 located between the working oil port of the rod chamber and the rodless chamber of the vertical oil cylinder 7, the oil tank 9 connected to the oil return port T of the multi-way valve 4, the multi-way Valve 4 is an electronically controlled manual dual-mode multi-way valve, including the first electric control valve 41, the second electric control valve 42, the third electric control valve 43, the fourth electric control valve 44 and the fifth electric control valve. Control valve 45, each joint all includes a manual handle and an electromagnet, also includes five electric control buttons respectively electrically connected with the five electromagnets, and the operating mode at the control top of the five electric control buttons Select button.

The working principle of this movable outrigger control system embodiment is:

The oil pump 3 supplies oil to the oil suction port P of the multi-way valve 4, and the A1, A2, A3, and A4 working oil ports of the multi-way valve 4 are respectively connected to the rodless chambers of the four horizontal cylinders 5, and the working oil of B1, B2, B3, and B4 Ports are respectively connected with the rodless chambers of the four vertical oil cylinders 7, and the working oil port A0 is connected with the rod chambers of the horizontal oil cylinder 5 and the vertical oil cylinder 7. Between the working oil port of the rod chamber and the working oil port of the rodless chamber of the vertical oil cylinder 7, there is also a bidirectional hydraulic control check valve that locks the vertical oil cylinder 7 and prevents the vertical oil cylinder 7 from falling down.

When the first joint electric control valve 41 of the multi-way valve 4 works at the first working position 411 under the action of the manual handle H1 or the electric control button P1, the horizontal oil cylinder 5 and the vertical oil cylinder 7 will be controlled to work at the extension of the piston rod. Out of working condition; when the first electric control valve 41 works at the second working position 412 under the action of the manual handle H1 or the electric control button P1, the horizontal cylinder 5 and the vertical cylinder 7 will be controlled to work when the piston rod is retracted working conditions.

The second electric control valve 42 of the multi-way valve 4, the third electric control valve 43, the fourth electric control valve 44 and the fifth electric control valve 45 all include the middle cut-off position, the horizontal oil cylinder working position and the vertical oil cylinder working position. Three working positions: when the manual handles H2, H3, H4, H5 or the corresponding four electric control buttons P2, P3, P4, P5 make the second electric control valve 42, the third electric control valve 43, the fourth electric control valve When the joint electric control valve 44 and the fifth joint electric control valve 45 work at the working position of the horizontal oil cylinder, operating the manual handle H1 or the electric control button P1 will control the extension or retraction of the horizontal oil cylinder 5; when the manual handles H2, H3, H4, H5 or the corresponding four electric control buttons P2, P3, P4, P5 make the second electric control valve 42, the third electric control valve 43, the fourth electric control valve 44 and the fifth electric control valve 45 When working at the working position of the vertical oil cylinder, actuating the manual handle H1 or the electric control button P1 will control the extension or retraction of the vertical oil cylinder 7 .

On the general control top of the electric control buttons P1, P2, P3, P4 and P5, there is also an operation mode selection button.

When the operation mode selection button is not pressed, only five manual handles H1, H2, H3, H4, H5 can be manually operated to control the action of the horizontal oil cylinder 5 and/or the vertical oil cylinder 7, and the electric control button is pressed at this time Any one of P1, P2, P3, P4, and P5 cannot control the action of the multi-way valve 4, and also cannot control the action of the oil cylinder. At this time, only the handle signal is valid.

When the operation mode selection button is pressed, press any one of the electric control buttons P1, P2, P3, P4, P5 to control the electric signal of the electromagnet of the corresponding electric control valve, and control it through the corresponding electric control button The corresponding electric control valve moves, thereby controlling the movement of the horizontal cylinder 5 or the vertical cylinder 7, so that the operator can freely choose the manual mode or the electric control mode to operate the movable outrigger according to the working conditions, and improve the working efficiency and working safety performance.

Preferably, it also includes a pressure sensor 2 and a solenoid valve 1. The pressure sensor 2 is located at the oil outlet of the oil pump 3. The solenoid valve 1 is located between the pressure sensor 2 and the oil tank 9. The sensor 2 is electrically connected to the central controller of the solenoid valve 1 .

In this embodiment, when the operation mode selection button is pressed, if any one of the electric control buttons P1, P2, P3, P4, P5 is not pressed, the central controller collects the information of the operation mode selection button and the electric control button. The working status signal is judged. At this time, if the manual operation is performed manually, the pressure sensor 2 located at the oil supply port of the oil pump 3 will detect that the pressure reaches the set value, and the central controller will control the solenoid valve 1 to be powered on. position, the oil pump 3 unloads through the solenoid valve 1, making the manual mode invalid.

When the operation mode selection button is pressed, if the manual handle is manually operated at this time, there may be a hidden danger of simultaneously operating the outrigger in the electric control mode and manual mode, and the specific extension position of the outrigger cannot be reliably controlled, posing a safety hazard. The technical solution in this embodiment ensures that if the manual mode operation is performed in the electronic control mode, the system will automatically release the pressure to disable the manual mode, ensuring that only one working mode is operated, and improving the safety performance of the movable outrigger control system.

Preferably, an alarm electrically connected to the central controller is also included.

The specific solution of this embodiment is that when the operation mode selection button is pressed, that is, after the electric control mode is activated, if any one or more of the electric control buttons P1, P2, P3, P4, and P5 have been pressed, then If the manual operation is performed manually by operating the manual handle, the position of the spool of the multi-way valve 4 is affected, which is fed back to the central controller, and the central controller outputs an abnormal signal to the alarm, and the alarm gives an alarm.

The technical solution in this embodiment eliminates the potential safety hazard that the manual mode and the electric control mode may be performed simultaneously. When the manual mode is operated under the electric control mode, the central controller will control the alarm to alarm and give prompts to the operator to avoid simultaneous operation of the manual mode and the electric control mode.

Preferably, the solenoid valve 1 is a two-position two-way solenoid valve.

In this embodiment, the solenoid valve 1 is a two-position two-way solenoid valve, including two positions: cut-off position and conduction position.

Preferably, a vertical proximity switch 8 located at the piston rod extension end of the vertical oil cylinder 7 is also included.

In this embodiment, four vertical proximity switches 8 are arranged at the extending ends of the piston rods of the four vertical oil cylinders 7 to judge and prompt whether the current vertical oil cylinders 7 are stretched out in place, so as to improve the automatic performance of the movable outrigger control system.

Preferably, it also includes a horizontal proximity switch 6 located at the extended end of the piston rod of the horizontal oil cylinder 5 .

In this embodiment, four horizontal proximity switches 6 are arranged at the extending ends of the piston rods of the four horizontal oil cylinders 5 to judge and prompt whether the current horizontal oil cylinders 5 are stretched out in place, so as to improve the automatic performance of the movable outrigger control system.

Preferably, the first joint electric control valve 41 is a three-position six-way electric control valve.

Preferably, the second electric control valve 42 , the third electric control valve 43 , the fourth electric control valve 44 and the fifth electric control valve 45 are three-position four-way electric control valves.

The utility model also provides a tire crane, which includes a driver's cab and movable outriggers, and also includes the movable outrigger control system described in any of the above technical solutions, the operation mode selection button and the five electric control buttons are all Located on the operator panel of the cab. Obviously, the tire crane has all the beneficial effects of the above-mentioned movable outrigger control system, which will not be repeated here.

Preferably, a level gauge located on the multi-way valve 4 is also included.

In this embodiment, a level is also provided on the multi-way valve 4 to detect and display the level of the frame body after the outriggers are stretched out in real time, so as to provide the operator with an action basis.

Fig. 3 shows the working flow chart of another embodiment of the movable outrigger control system proposed by the present invention. Its working principle is:

The movable outrigger control system provided by the utility model includes two operation modes of manual control and electric control.

When the operation mode selection button is not turned on, only the manual mode is valid, and the electric control mode is invalid. At this time, the manual handle can be manually operated, and the horizontal proximity switch 6 judges whether the horizontal oil cylinder 5 is stretched out in place. If it is stretched out in place, the stretching action stops; Oil cylinder 5 stretches out. Vertical proximity switch 8 then judges and controls the extension of vertical oil cylinder 7 with the same logic.

When the operation mode selection button is turned on, only the electric control mode is valid, and the manual mode is invalid. At this time, the central controller judges whether the manual handle is being manually operated: if the manual handle is not activated, the electric control button is operated at this time, and the central controller controls the movement of the legs according to the judgment results of the horizontal proximity switch 6 and the vertical proximity switch 8—— If the proximity switch judges that the action of the oil cylinder is in place, the action of the supporting legs stops. If it is not in place, the electric control button can be continuously operated to realize the automatic extension of the supporting legs.

If the manual handle is activated when the operation mode selection button is turned on, the central controller judges whether the electric control button is pressed: if the electric control button is not pressed, when the pressure sensor located at the oil supply port of the oil pump 3 2 When the detected pressure value reaches the set value, the solenoid valve 1 is energized to work in the conduction position, the oil pump is unloaded, and the manual mode becomes invalid; if the electric control button is also pressed at this time, the spool of the multi-way valve 4 will If the position is affected, it will be fed back to the central controller, and the central controller will output an abnormal signal to the alarm, and the alarm will alarm to avoid simultaneous operation of manual mode and electric control mode.

To sum up, the movable outrigger control system provided by the utility model enables the operator to select the operation mode according to the operation conditions, and improves the operation efficiency and operation safety performance. The utility model also provides a tire crane.

In the present invention, the terms "first", "second", "third", "fourth" and "fifth" are used for descriptive purposes only, and should not be understood as indicating or implying relative importance. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model according to specific situations.

The above descriptions are only preferred embodiments of the utility model, and are not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims (10)

1. A movable outrigger control system, including an oil pump (3), a multi-way valve (4) located at the oil supply port P of the oil pump (3), and a level connected to the working oil port of the multi-way valve (4). The oil cylinder (5) and the vertical oil cylinder (7), the two-way hydraulic control check valve (10) located between the working oil port of the rod chamber and the working oil port of the rodless chamber of the vertical oil cylinder (7), and the multi-way valve ( 4) The oil tank (9) connected to the oil return port T is characterized in that, The multi-way valve (4) is an electronically controlled manual dual-mode multi-way valve, including a first group of electric control valves (41), a second group of electric control valves (42), a third group of electric control valves (43), The fourth electric control valve (44) and the fifth electric control valve (45), each of which includes a manual handle and an electromagnet, and also includes five electric control buttons respectively connected to the five electromagnets , and the operation mode selection button located at the upper end of the five electric control buttons. 2. The movable outrigger control system according to claim 1, further comprising a pressure sensor (2) and a solenoid valve (1), the pressure sensor (2) is located at the oil outlet of the oil pump (3), so The solenoid valve (1) is located between the pressure sensor (2) and the fuel tank (9), and also includes a central controller electrically connected to the pressure sensor (2) and the solenoid valve (1). 3. The movable outrigger control system according to claim 2, further comprising an alarm electrically connected to the central controller. 4. The movable outrigger control system according to claim 3, further comprising a vertical proximity switch (8) located at the protruding end of the piston rod of the vertical oil cylinder (7). 5. The movable outrigger control system according to claim 4, further comprising a horizontal proximity switch (6) located at the extension end of the piston rod of the horizontal oil cylinder (5). 6. The movable outrigger control system according to claim 5, characterized in that, the solenoid valve (1) is a two-position two-way solenoid valve. 7. The movable outrigger control system according to any one of claims 1 to 6, characterized in that, the second electric control valve (42), the third electric control valve (43), the fourth electric control valve The electric control valve (44) and the fifth joint electric control valve (45) are three-position four-way electric control valves. 8. The movable outrigger control system according to claim 7, characterized in that, the first electric control valve (41) is a three-position six-way electric control valve. 9. A tire crane, comprising a cab, a frame body and movable outriggers, characterized in that it also includes the movable outrigger control system according to any one of claims 1 to 8, the operation mode selection button and the five electric control buttons are all located on the operation panel of the cab. 10. The tire crane according to claim 9, further comprising a spirit level located on the multi-way valve (4).

Images